Mmmmm... I reluctantly give this one 8/10.
It's fairly average in most respects, and most of the plot developments and gimmicks are well-known, but the art is nice, the plot is executed well, such as it is, and I do actually enjoy it every time I re-read it from the beginning.
The MC gets isekaied as a hanger-on to the actually desired heroes (cliché #1),
gets out of town ASAP because the King seems sketchy AF (cliché #2),
his Skill lets him shop with gold coins in Japanese supermarkets (cliché #3),
his focus is just mostly eating a lot of delicious food (cliché #4),
he manages to get the services of a haughty OP Fenrir (cliché #5),
and of a cutesy slime which nevertheless grows pretty OP (cliché #6),
and there's a bunch of Gods watching him because he's amusing (cliché #7).
Now, in fairness, while it wasn't first with these in 2016 or so, it was an early adopter, gave the gimmicks tweaks which are still copied to this day, and it executes the package well. The characters generally have personalities, and are fun to read about.
Overall, you could certainly read worse.